.bodys{
    background-color: #f7f7f7;
}
.subject{
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
    .sidebar{
        width: 139px;
        background-color: white;
        padding: 10px 0;
        padding-left: 26px;
        .sidebar-son{
            width: 125px;
            padding-left: 10px;
            ul{
                li{
                    padding: 15px 0;
                    &:nth-child(1){
                        p{
                            border-left: 3px solid rgba(236, 3, 3, 0.727);
                            &:hover{
                                color: black;
                            }
                        }
                    }
                    p{
                        padding: 0 10px;
                        &:hover{
                            color: red;
                        }
                    }
                }
            }
        }
    }

    .right-content{
        width: 1024px;
    }
}